Origin
Southern and central Africa
Brazil, Tanzania, Zimbabwe, Madagascar, Burma, Sri Lanka, India
Color
Black, Brownish, Brown
Red, Violet
Streak
Brown
-
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.5-4.83.62-4.20
1
7.18
👆🏻
Fracture
Uneven
-
Cleavage
None, parting may develop along {111}
None
Mohs Hardness
5.57-7.5
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
(Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)
Luster
-
-
Pleochroism
none.
-
Dispersion
0.040.02
0.005
1
👆🏻
Transparency
-
TransparentGemdat.org
Refractive Index
2.08-2.161.73-1.77
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
-
TransparentGemdat.org
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Courage
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Passion